Transport of charged particles by adjusting rf voltage amplitudes

TL;DR

This paper introduces a planar architecture for scalable quantum information processing that enables smooth transport of charged particles through X-junctions by adjusting rf voltage amplitudes, demonstrated with dust particles in a 3D trap.

Contribution

It presents a novel method to transport particles without micromotion in a scalable QIP architecture by adjusting rf amplitudes, supported by a proof-of-principle experiment.

Findings

Successful transport of dust particles in 3D using adjustable rf potentials.

Amplitude settings can be regularized to ensure smooth particle movement.

The approach enables scalable quantum information processing architectures.

Abstract

We propose a planar architecture for scalable quantum information processing (QIP) that includes X-junctions through which particles can move without micromotion. This is achieved by adjusting radio frequency (rf) amplitudes to move an rf null along the legs of the junction. We provide a proof-of-principle by transporting dust particles in three dimensions via adjustable rf potentials in a 3D trap. For the proposed planar architecture, we use regularization techniques to obtain amplitude settings that guarantee smooth transport through the X-junction.